Here's a note of caution for all those tourists who head to Goa annually for a bit of sun and a splash in the seau00a0-- marine scientists have said the waters off the state's coast contain alarmingly high levels of coliform bacteria caused by the release of untreated sewage.

Scientists of the Goa-based marine research organisation National Institute of Oceanography (NIO) have said that the waters off Goa's coast are "unsafe for recreational bathing and fishing".